This episode does a great job of giving us insights as to why Jesse reacts like he does - Danny taalking about the anger Nick holds inside and that Jesse must have inherited some. (By the way, Nick would have been born in Greece & was likely a child during World War Two, which could give some insight as to why he has some anger issues, with all the fighting.) It also shows how important it is to talk about things and how not everyone is meant to do the same thing.
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